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鄱阳湖生态经济区城市体系空间结构分形特征分析
作者: 刘肖利 张智 贾玉连 齐述华  来源:长江流域资源与环境 年份:2012 文献类型 :期刊 关键词: 城市体系空间结构  分形特征  鄱阳湖生态经济区 
描述:为探讨鄱阳湖生态经济区城市体系空间结构特征,利用分形模型,分别测算了鄱阳湖生态经济区城市体系的集聚维、网格维和关联维。研究表明:(1)南昌市和九江市在鄱阳湖生态经济区城市体系自组织演化过程中核心作用
全文:为探讨鄱阳湖生态经济区城市体系空间结构特征,利用分形模型,分别测算了鄱阳湖生态经济区城市体系的集聚维、网格维和关联维。研究表明:(1)南昌市和九江市在鄱阳湖生态经济区城市体系自组织演化过程中核心作用
赣北鄱阳湖地区土塘剖面第四纪红土地球化学特征及古气候意义
作者: 凌超豪 龙进 贾玉连 洪祎君 徐传奇 王鹏岭  来源:古地理学报 年份:2015 文献类型 :期刊 关键词: 第四纪  赣北  常量元素  古气候演变  鄱阳湖地区 
描述:意义。(1)土塘剖面粒度组分均一,常量元素含量相近,风化淋溶强烈。(2)土塘剖面各地层间化学风化强度存在差异:下蜀黄土层为初期的去Na、Ca阶段;均质红土层为中期的去K阶段;微网纹红土层由去K阶段向去
全文:意义。(1)土塘剖面粒度组分均一,常量元素含量相近,风化淋溶强烈。(2)土塘剖面各地层间化学风化强度存在差异:下蜀黄土层为初期的去Na、Ca阶段;均质红土层为中期的去K阶段;微网纹红土层由去K阶段向去
鄱阳湖流域史前人类遗址时空分布及其环境响应
作者: 徐佳佳 贾玉连 马春梅 朱诚 吴立 李育远 王鑫浩  来源:地理学报(英文版) 年份:2016 文献类型 :期刊 关键词: expanded  northward  geographic  records  环境响应  鄱阳湖流域  climatic  ancient  Holocene  southeast 
描述:The temporal-spatial geographic distribution of archaeological sites and its feature between 10.0–2.8 ka BP(ka BP= thousands of years before 0 BP, where “0 BP” is defined as the year AD 1950) were determined, based on GIS spatial analysis in the Poyang Lake Basin. The relationship between geographic distribution of sites of different periods under subsistence existence of ancient civilizations, climate and environmental change was investigated. The results revealed numerous archaeological sites of the Neolithic Age(10.0–3.6 ka BP). The sites were mainly located in the northern part of the Poyang Lake Basin, a hilly and mountainous area with many river terraces suitable for the development of human civilization. The number of archaeological sites rapidly increased during the Shang and Zhou dynasties(3.6–2.8 ka BP) and spread widely on the floodplains of the middle and lower reaches of Ganjiang River and onto the west, south, and southeast beach areas of the Poyang Lake. Holocene records of climate change suggested that it was possible that climate fluctuations had a great impact on human evolution in the study area. Before 3.6 ka BP, westward and northward expansion of Neolithic cultures in the Poyang Lake watershed occurred under the background of climate amelioration(becoming warmer and wetter). The ancient people lived in the hilly areas with high elevation. The simple mode of a fishing and gathering economy was mostly suited to this area in the early Neolithic Age. The scope of human activities was expanded and cultural diversity developed in the late Neolithic Age. However, with population growth and increasing survival pressure in a dry-cold climatic stage after 3.6 ka BP, this simple living mode had to be abandoned, and various forms of economy, the majority being agriculture, were developed on flood plains of the lower reaches of numerous rivers around Poyang Lake. This promoted flourishing of the Bronze culture of South China.
全文:The temporal-spatial geographic distribution of archaeological sites and its feature between 10.0–2.8 ka BP(ka BP= thousands of years before 0 BP, where “0 BP” is defined as the year AD 1950) were determined, based on GIS spatial analysis in the Poyang Lake Basin. The relationship between geographic distribution of sites of different periods under subsistence existence of ancient civilizations, climate and environmental change was investigated. The results revealed numerous archaeological sites of the Neolithic Age(10.0–3.6 ka BP). The sites were mainly located in the northern part of the Poyang Lake Basin, a hilly and mountainous area with many river terraces suitable for the development of human civilization. The number of archaeological sites rapidly increased during the Shang and Zhou dynasties(3.6–2.8 ka BP) and spread widely on the floodplains of the middle and lower reaches of Ganjiang River and onto the west, south, and southeast beach areas of the Poyang Lake. Holocene records of climate change suggested that it was possible that climate fluctuations had a great impact on human evolution in the study area. Before 3.6 ka BP, westward and northward expansion of Neolithic cultures in the Poyang Lake watershed occurred under the background of climate amelioration(becoming warmer and wetter). The ancient people lived in the hilly areas with high elevation. The simple mode of a fishing and gathering economy was mostly suited to this area in the early Neolithic Age. The scope of human activities was expanded and cultural diversity developed in the late Neolithic Age. However, with population growth and increasing survival pressure in a dry-cold climatic stage after 3.6 ka BP, this simple living mode had to be abandoned, and various forms of economy, the majority being agriculture, were developed on flood plains of the lower reaches of numerous rivers around Poyang Lake. This promoted flourishing of the Bronze culture of South China.
赣北鄱阳湖地区第四纪黄土的粒度特征及环境意义
作者: 徐传奇 贾玉连 刘倩 凌超豪 王鹏岭  来源:干旱区资源与环境 年份:2016 文献类型 :期刊 关键词: 鄱阳湖  黄土  风积成因  古土壤  粒度特征 
描述:对长江中游南岸鄱阳湖东侧砂山下风向的太平关黄土剖面进行了粒度测试分析,与南京下蜀黄土、巫山黄土和长江河流沉积物进行了对比。结果表明:1)太平关剖面粉砂(5-50μm)含量达到了50%以上,粘土次之
全文:对长江中游南岸鄱阳湖东侧砂山下风向的太平关黄土剖面进行了粒度测试分析,与南京下蜀黄土、巫山黄土和长江河流沉积物进行了对比。结果表明:1)太平关剖面粉砂(5-50μm)含量达到了50%以上,粘土次之
赣北鄱阳湖地区土塘剖面第四纪红土地球化学特征及古气候意义
作者: 凌超豪 龙进 贾玉连 洪祎君 徐传奇 王鹏岭  来源:古地理学报 年份:2015 文献类型 :期刊 关键词: 第四纪  赣北  常量元素  古气候演变  鄱阳湖地区 
描述:意义。(1)土塘剖面粒度组分均一,常量元素含量相近,风化淋溶强烈。(2)土塘剖面各地层间化学风化强度存在差异:下蜀黄土层为初期的去Na、Ca阶段;均质红土层为中期的去K阶段;微网纹红土层由去K阶段向去
全文:意义。(1)土塘剖面粒度组分均一,常量元素含量相近,风化淋溶强烈。(2)土塘剖面各地层间化学风化强度存在差异:下蜀黄土层为初期的去Na、Ca阶段;均质红土层为中期的去K阶段;微网纹红土层由去K阶段向去
末次冰期以来鄱阳湖东北缘下蜀黄土常量元素地球化学特征及其物源指示
作者: 龙进 贾玉连 张智 彭学敏 凌超豪 王朋岭  来源:沉积学报 年份:2015 文献类型 :期刊 关键词: 鄱阳湖东北缘  D  D断面  常量元素地球化学  风沙—粉尘堆积体系  下蜀黄土 
描述:揭示:1自北而南,元素含量具有系统性变化特征,Sr O、Na2O、Ca O、K2O、Mn O、Ca O呈负对数函数关系,Si O2、Zr O2、Al2O3、Ti O2及化学蚀变指数(CIA)呈正
全文:揭示:1自北而南,元素含量具有系统性变化特征,Sr O、Na2O、Ca O、K2O、Mn O、Ca O呈负对数函数关系,Si O2、Zr O2、Al2O3、Ti O2及化学蚀变指数(CIA)呈正
鄱阳湖生态经济区近60年极端温度事件变化特征研究
作者: 张智 贾玉连 王鹏岭 唐启强  来源:长江流域资源与环境 年份:2013 文献类型 :期刊 关键词: 极端温度事件  变化特征  鄱阳湖生态经济区 
描述:利用环鄱阳湖生态经济区6站逐日气象数据,建立了该区1952~2011年近60a极端温度事件演化序列。研究表明:(1)环鄱阳湖生态经济区极端高、低温事件线性趋势分别为0.4、-2.7d/10a;冷、热
全文:利用环鄱阳湖生态经济区6站逐日气象数据,建立了该区1952~2011年近60a极端温度事件演化序列。研究表明:(1)环鄱阳湖生态经济区极端高、低温事件线性趋势分别为0.4、-2.7d/10a;冷、热
赣北鄱阳湖地区黄土元素地球化学特征研究
作者: 张智 贾玉连 彭学敏 凌光久 王鹏岭  来源:长江流域资源与环境 年份:2014 文献类型 :期刊 关键词: 赣北鄱阳湖地区  元素分析  化学风化特征  风成堆积 
描述:对长江中下游彭泽定山—太平地区黄土进行元素分析,并将结果与黄土高原黄土、长江下游等地典型风成堆积进行对比。结果表明:(1)赣北鄱阳湖地区黄土元素P、Na、Ca亏损明显,Ti、Fe等为残留富集;断面
全文:对长江中下游彭泽定山—太平地区黄土进行元素分析,并将结果与黄土高原黄土、长江下游等地典型风成堆积进行对比。结果表明:(1)赣北鄱阳湖地区黄土元素P、Na、Ca亏损明显,Ti、Fe等为残留富集;断面
鄱阳湖沙化土地生态治理技术研究与示范
作者: 郑林 曹昀 丁明军 胡启武 李晓峰 贾玉连 詹选怀 李海涛 梁涛  来源:中国科技成果 年份:2015 文献类型 :期刊 关键词: 政府部门  示范  土地面积  滨湖地区  沙化治理  鄱阳湖地区  沙化土地  生态治理技术 
描述:鄱阳湖地区作为南方沙化的典型分布区,沙化土地面积3.89万公顷,主要分布于彭泽、湖口、都昌、星子、永修、新建等滨湖地区。当前,鄱阳湖沙化正以3~5米/年的速度扩展,甚至出现了“沙进人退”的状况,严重影响了当地居民的生产和生活,已引起科研机构和政府部门的高度重视。近几十年来,一些学者就鄱阳湖沙化土地的形成演化、景观结构、植被演替等方面进行了研究,但对鄱阳湖地区沙化土地演化过程、机理以及与北方荒漠化异同等问题目前尚没有形成明确、统一的结论,在沙化治理方面尽管也开展了一些相关工作,但还未探索出适宜于本地区成熟的沙化治理技术与模式。
全文:鄱阳湖地区作为南方沙化的典型分布区,沙化土地面积3.89万公顷,主要分布于彭泽、湖口、都昌、星子、永修、新建等滨湖地区。当前,鄱阳湖沙化正以3~5米/年的速度扩展,甚至出现了“沙进人退”的状况,严重影响了当地居民的生产和生活,已引起科研机构和政府部门的高度重视。近几十年来,一些学者就鄱阳湖沙化土地的形成演化、景观结构、植被演替等方面进行了研究,但对鄱阳湖地区沙化土地演化过程、机理以及与北方荒漠化异同等问题目前尚没有形成明确、统一的结论,在沙化治理方面尽管也开展了一些相关工作,但还未探索出适宜于本地区成熟的沙化治理技术与模式。
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